{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"A9DE3740","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"A9DE3740","canonicalUrl":"https://aoctrl.com/schneider/A9DE3740","factsUrl":"https://aoctrl.com/api/mcp/products/A9DE3740","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric Acti9 iCV40 RCBO, A9DE3740, 40 A rated, 30 mA earth leakage, C-curve, 6 kA breaking capacity, 3P+N, DIN rail mount.","salesMarkdown":"The Schneider Electric A9DE3740 is an Acti9 iCV40 residual current circuit breaker with overcurrent protection (RCBO) — a 3P+N device rated 40 A with 30 mA earth-leakage sensitivity, C-curve, and a 6 kA breaking capacity at 400 V AC. It combines thermal-magnetic overcurrent protection and integrated earth-leakage protection in one DIN-rail module, saving panel space compared to separate MCB + RCCD assemblies. The 40 A rated current (In) and C-curve (magnetic trip at 5–10 × In) make this RCBO the right choice for general-purpose distribution circuits feeding resistive and moderate inductive loads — think lighting banks, small motor groups, or socket outlets. The 30 mA earth-leakage threshold provides personal protection against indirect contact and is standard for final circuits in residential and commercial panels. The 6 kA Icn at 400 V AC meets the fault level requirement for most sub-distribution boards; if your point of coupling sees higher prospective fault current, you'll need a current-limiting upstream MCB or a higher-rated device. Thermal-magnetic trip technology means the thermal bimetal handles sustained overloads (e.g., a stalled fan drawing 50 A for minutes) while the magnetic coil trips instantaneously on short-circuit currents above 200 A (5 × 40 A). The 18 mm phase-to-phase pitch and 9 mm phase-to-neutral pitch fit the Acti9 modular enclosure footprint. Tunnel-type terminals accept 1–16 mm² rigid or 1–10 mm² flexible cable; strip 14 mm and torque to 2 N·m. IP20 finger-safe with the enclosure closed, IP40 inside a modular enclosure — fine for clean indoor panels, not for washdown zones.","metaTitle":"Schneider Electric A9DE3740 Acti9 iCV40 40A 30mA RCBO, C-Cur","metaDescription":"Schneider Electric A9DE3740 Acti9 iCV40 40A 30mA RCBO, 6kA breaking capacity, C-curve, 3P+N, DIN rail mount. Sourced to order; RFQ for current pricing and availability.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Residual Current Breakers (RCCB/RCBO)"],"specifications":{"Depth":"73 mm","Range":"Acti9","Width":"90 mm","Colour":"White","Height":"93 mm","Standards":"EN/IEC 61009-2-1","Curve code":"C","9 Mm Pitches":"10","Control type":"Toggle","Network type":"AC","Product name":"Acti9 iCV40","Mounting mode":"Clip-on","Quality labels":"EAC IMQ","lifecycle_stage":"current","Connection pitch":"18 mm between phases 9 mm between phase and neutral","Limitation class":"3 conforming to EN/IEC 61009-2-1","Local signalling":"ON/OFF indication Fault indication","Mounting support":"DIN rail","Neutral position":"Left","Pollution degree":"3","Breaking capacity":"6000 A Icn at 400 V AC 50/60 Hz conforming to EN/IEC 61009-2-1","Device short name":"iCV40N","Network frequency":"50/60 Hz","Poles description":"3P + N","Relative humidity":"95 % at 55 °C","Tightening torque":"2 N.m top or bottom","Device application":"Distribution","Operating altitude":"2000 m","[In] rated current":"40 A","Overvoltage category":"III conforming to IEC 60364","Trip unit technology":"Thermal-magnetic","Electrical durability":"10000 cycles","Mechanical durability":"20000 cycles","Wire stripping length":"14 mm for top or bottom connection","Connections - terminals":"Tunnel type terminals top or bottom 1...16 mm² rigid Tunnel type terminals top or bottom 1...10 mm² flexible","IP degree of protection":"IP20 conforming to IEC 60529 IP40 (modular enclosure) conforming to IEC 60529","Magnetic tripping limit":"5...10 x In","Earth-leakage protection":"Integrated","Device location in system":"Outgoer","Earth-leakage sensitivity":"30 mA","Number of protected poles":"3","Product or component type":"Residual current breaker with overcurrent protection (RCBO)","Suitability for isolation":"Yes conforming to EN/IEC 60947-2","Contact position indicator":"Yes","Locking options description":"Sealable Padlocking device","Electromagnetic compatibility":"8/20 µs impulse withstand, 250 A conforming to EN/IEC 61009-1","[Ui] rated insulation voltage":"440 V AC 50/60 Hz","Earth-leakage protection class":"Type AC","[Ue] rated operational voltage":"400 V AC 50/60 Hz","Rated breaking and making capacity":"Idm 3000 A at 400 V AC 50/60 Hz conforming to EN 61009-2-1 Idm 500 A at 400 V AC 50/60 Hz conforming to IEC 61009-2-1","Ambient air temperature for storage":"-40...85 °C","Earth-leakage protection time delay":"Instantaneous","Residual current tripping technology":"Voltage independent","Ambient air temperature for operation":"-5...60 °C","[Ics] rated service breaking capacity":"6000 A 100 % x Icn at 400 V AC 50/60 Hz conforming to EN/IEC 61009-2-1","[Uimp] rated impulse withstand voltage":"4 kV","Comb busbar and distribution block compatibility":"Top or bottom: tooth"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$95.11","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://www.se.com/ng/en/product/A9DE3740/residual-current-breaker-with-overcurrent-protection-rcbo-acti9-icv40-3p+n-40-a-c-curve-6000-a-30-ma-ac-type/","alternativesUrl":"https://aoctrl.com/api/mcp/products/A9DE3740/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy the A9DE3740?","answer":"The A9DE3740 is available to order against an RFQ through independent distribution. Submit a request for current pricing and lead-time confirmation."},{"question":"What is the A9DE3740's breaking capacity?","answer":"6 kA Icn at 400 V AC, 50/60 Hz, conforming to EN/IEC 61009-2-1."},{"question":"What compliance standards does the A9DE3740 meet?","answer":"It is certified to EN/IEC 61009-2-1, carries EAC and IMQ quality labels, and is rated for overvoltage category III per IEC 60364."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/A9DE3740","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/schneider/A9DE3740 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}